The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 24, 2007
Filed:
Nov. 11, 2003
Applicants:
Goetz Scheffler, Grenzach-Wyhlen, DE;
Peter Rohringer, Schönenbuch, CH;
Ian John Fletcher, Rheinfelden, CH;
Inventors:
Goetz Scheffler, Grenzach-Wyhlen, DE;
Peter Rohringer, Schönenbuch, CH;
Ian John Fletcher, Rheinfelden, CH;
Assignee:
Ciba Specialty Chemicals Corporation, Tarrytown, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C11D 3/42 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides novel bis-triazinylaminostilbene amphoteric fluorescent whitening agents, comprising both individual components and mixtures thereof, a process for their preparation, intermediates useful for their prepartion and use of the fluorescent whitening agents for the fluorescents whitening of paper.